Ghana is considered one of West Africa’s most stable democracies, and until recently it was a model for economic growth. But since 2012, the economy has taken a turn for the worse, and Ghana is now getting help from the IMF. In this podcast, IMF Mission Chief, Joël Toujas-Bernaté talks about the country’s economic challenges.

The IMF released an update to its World Economic Outlook published in October 2015. The WEO Update, projects global growth to be slightly lower than last fall’s forecast, at 3.4 percent this year, and 3.6 percent in 2017. IMF Chief economist Maurice Obstfeld, launched the new report at a press conference in London.

As the world’s metropolises expand to accommodate more people, the earth’s supply of sand is being pushed to the limit. Deceptively abundant, the basic raw material for glass and concrete can’t keep up with demand. In this podcast, Pascal Peduzzi, of the United Nations Environmental Programme, talks about how our overdependence on sand is unsustainable.